Search Results For “multiplication and division missing numbers”

Working carefully, looking for patterns to help, remembering that addition can be done in any order.

More about the tables square, including square numbers.

Making fractions add up to one whole one, including some tricky ones where the bottom numbers of the fractions are different!

What numbers do digits represent? It all depends on their place.

Number lines with numbers only at each end make it tricky to say where the arrows are placed. Some degree of error has to expected with this task!

Judge which is the best approximate answer by rounding numbers.

When multiplying 2-digit numbers by 1-digit in your head usually it is easier to start with the tens.

Binary trees are often used in science, but here we use them to sort numbers.

Revision of adding several small numbers mentally, using strategies learned earlier.

Use the standard written method to subtract numbers in the thousands. Check by adding the answer to the lower number in the sum.

How about trying to multiply by 14 or 16 in your head?

The prime factors of a number are the factors which are also prime numbers. They can be found by using a factor tree.